Soldering iron



,w. J. FRlsBlE soLDERING IRON Fild'FB. 15. 1924 Patented Mar. 24, 1925.

UNITED STATES 1,530,766 PATENT WLLIAivr J. FRIS'E, oF' CII''AGO, ILLiitoIS; Aseeidi To Jilir'ife" MNUACTUR- ING COMPANYQOFCHXCAGO; ILL'INOIS., A CORPORATION 0F mLINoI;

MV invention ielliteS to Soldering? iois*V im; heut-ed fuel w-ipoi'wvill generate t'eowui cobol or' hjihioeerboii fuel teVbe-Fused" Witili- @quel eilicieiey. t

My improved device is shown on the ac` compuiyiug dieu/iii@ iii Wlehf Figi l iS-ej sideeleV-ltioual View, 2' is in vextierlf diametral" sectional* view/v, und

Fig. 3 is a sectional View on lille' 343;" Fig. l.

in geuei'il the `iehcompIielesu hzindle pui't which is hollow' to ztloldl a, reS'e'vo'i* 'for the fuel, and ztbove the h'udle" is' the geneietoi' zuid buine'i* stiluctiiife; Theludle'f structure comprises the body patlOf and 3 the buse 1l halting' tl'iieeded' detechible eli- /eiit theieifith. The bodylaflidblse are ot 5 aud the baise is Sullioieutlyfla-red at itlowe end to pi'oide ample sea'tig su'faoe fof holding the*ironiyupiight pos'itioh; The :miel bore of thehuudle body pfeift receives the ii'letullieA tube l2` to which 'it is' ljigidly seemed by means" of a' eet s'eeviv' 13.4 Secured in the" lowel end of the interim-ily' thi'euded buevhigt 14 fol;` ie'ceivi119; the illei plug' The'buehiiif; has the :iiihullu ooiiieel" Seat 16 to be egaged by the annularWashel? ,eo that e tight jouit Will result and leakage will be pi'eveuted', the Weshe' being-'of Some yielding' iz'iiteiiel sucli aeleed or copper.

r)She uppei' eudof the tube 12de reeuforoed bj1' the encircling' metalbruid 18 and thread-- ed hito the upper ed'of the tube is the klower 'd pei-tlf.) of the valve 4fitting; receiif'ihghead 2l); The joint between` the flange andi tube is preferably thoroughly sealed by means of? lith 11 e oi' other Suitable material which The boi y 2l of the vlve fitting V seats tube' ie the imbedded in the plugl en the lieuclQU"and1 has the;t-llrededend22a engaging ib; the heed.A The body haejtbe i chzuhbei them-zinl whichV communicates ,vithlthe'upper end of the'tubetspuce;

AboYe" thev chamber 23- tle" valve' body has the lateral extension 2lihzwing the axial bore 25' which termediate*ite'ehds is* intel"- nally theudedtol receive the' tllreuded seetiioir oi the valve Stem ne Sli'oii'ii" in' 4Figimy Q. TheA 0211927 reee'ivesf theolte end of the extension 24 and' Seid/es tvforee peeking' material mound"- the` sleurl to p"re`ve`r1tAH leakage. The" outel e'iidof the Vllve Stent* is delleetedi and euppbteth hudl: Theinneend of the breQS is4 citia ed' nd'my provides zl-'co'11ifC-l Valvee't? 30E for" e'eiv'-y .uigxtlie' cohieail` valve e`I''d-3}L ofthe Steur- 'whel'r the stem is i11=- itsmie po'sitiohf.- The end of theI bble is connected by the duet" 32 ufith the upper endof the chlixhbel 23k Outside of thevahfe seat the vlvebie ie'y eoimeL-t'edby'the" duet 33 Witilithe soeket 34* in Whicheetfthe bu'lner' t'ib 35:; y

is threaded and hes 1 the eeatiugl' shoulders' sides to leave the passageways a9 and 50 for the flame, the rounded surfaces 51 causing the flame to curl around the tip to rapidly and efficient-ly heat it. y

To charge the iron .with fuel, thebase 11 is removedL and the iron inverted, and after the plug 15 is withdrawn the fuel can be poured into the reservoir provided. by the tube 12. The plug and base arethen rcapplied and the iron supported in vertical position on its base.l The fuel may be either alcohol or the like` or a hydrocarbon liquid.

-A portion 'of the-fuel is poured into the priming cup LO and ignited and the flames of this burning'fuel vwill rapidly heat the valve fitting and the generating chamber 23 so that fuelk which has been conducted into saidchamber along the wick will be rapidly vaporized and the vapor highly heated and gasiiied.l The valve stem is then rotated to unseat its end from the valve seat l30, and the generated` gas will then flowV through the duct 32, the valve bore, and the duct 33 and into the tip socket 34, from where it travels thru the bore of the tip and emerges from the vtip orifice into the burner tube where it is immediately ing tip and if the pressure is great enough mixed with air entering through the apertures 44, and later with air entering through the apertures 4o. The 'valve is opened while there is still some priming fluid burning sey that the flame f can ignite the gas issuing from the tip. As there is considerable expansion when the fuel is vaporized andthe vapor gasiiied, corresponding pressurel will be generatedand this pressure will force the gas from the burner tip, the v flow' being of course controlled by the valve.

'Ihefla'me will impinge against the solderthe flame will also extend through the apertures i8 and the passageways 49 and 50. If it is desired to use the iron as a torch, the soldering tip is unscrewed so that the flame can shoot out of the end of the Bunsen tube. A

During use as a torch or for solderino` c, 1 b purposes the iron is usually held in inclinedA or` inverted position, and the liquid fuel will therefore have a tendency to `flow more rapidly toward the generating chamber, and might cool the chamber sufficiently to prevent further generation. In order toretard the travel of the liquid the washers 88 referred to are inserted. rIhese washers surround the asbestos wick and are of felt or other suitable material through which the fuelA can flow only slowly. The. flow of the fuel toward the generating chamber is therefore confined practically to the more porous asbestos wick. The asbestos ,packing 37 below the valve Astructure supporting head 20 serves to checlr the'fiow of heat toward the handle, any heat traveling down weaves the head 2O will be` absorbedl by this packing and also .by the wick and surrounding felt washers and will be utilized in preliminarily heating the fuel. To assist in lsupporting the felt washers a] perforated' plate or screen 52 is interposed between the bottom washer and the annular shoulder 39. f A screen 53 is preferably inserted near the top of the generating chamber 23 above the asbestos wicking therein to prevent escape of any wick parts or solid particles into the bore 32. Filter material 54 may ,also be provided in the. tip socket 34 in advanceof-the burner tip to` protect the fine tip orifice and prevent clogging thereof by any solid particles which might reach the tip socket. After the iron has been primed and is burning the heat will be conducted downwardly` by the valve fitting metal to the generating chamber 23 and generation will be maintained. By adjusting the valve7 the volume of flame can be controlled as desired. 4,

. I thus produce a simple yet efficient device which can be used as a torch or asa soldering ironand in which alcohol or hydrocarbon fuel can beused kwith equal efficiency. l

I donot desire to be limited to the exact construction and arrangement. shown and described as modifications are possibleleo combination of a hollow handle structure i forming a reservoir for fuel, a valve fitting above andcommunicating with said reservoir, said valve fitting having a generating chamber, 'an asbestos wick` extending through said reservoir and into said generating.

chamber, feltjwashers in the upper end of said reservoir surrounding said wick, a gas tipy at the upper end of said valve fitting and a lpassageway connecting said generating 'chamber with said tip, and means for controlling t-he flow through said passageway.

2. In a device ofthe class described, the combination` of a handle having' a bore forming a reservoir, a valve fitting above and-communicating with said reservoir, said `valve fitting having a generating chamber therein above the `upper. end of said reservoir, an asbestos wick extending through said reservoir and into said generating chamber, felt washers 'at the upper end of saidreservoir 'surrounding said wick, a gas outlet tip at the upper end of said valve t- A ting, said valve fitting having a passageway connecting said generating chamber with said tip, and a priming cup surrounding said generating chamber.

8. In a device of the class described, the

combination of a cylindrical tube forming a reservoir, a bushlngseoured 1n the'upper end of said tube, a Valve fitting on said bushing having a generating chamber therein communicating with the upper end of said reservoir, a wiek extending through said reservoir and into said generating chamber, asbestos within said bushing surrounding said wick, a tier of felt washers in the upper end of said reservoir below said asbestos packing and surrounding said wick, a gas outlet tip at the upper end of said fitting, said fitting having a passageway connecting said tip with said generating chamber, a Valve for controlling said passageway, and a priming cup secured between said itting and bushing and surrounding said generating chamber.

4. In a device of the class described, the combination of a metal tube forming a reservoir, a. bushing secured in the upper end Voir and into said generating chamber, as-

bestos packing in said bushing surrounding said wick, ai tier of felt washers below said packing and receiving said wick, said tube having'an annular shoulder for supporting said washers, said fitting having ak gas oriflee at the upper 'end and a passageway connecting it with said reservoir, anda priming cup detachably secured between said fitting and bushing and surrounding said generating chamber. y y

In witness whereof, I hereunto subscribe my naine this 9th day of February A. D.,

1924. n VIL'LIAM J. FRISBIE. 

